Improvement in safes



\ ated ,Stanca "sind man JOSEPH P. WHITE, or

SAVANNAH, GEORGIA.

Letters Patent No. 95,059, dated September 2], 1869.

IMPROVEMENT IN SAFES.

* -Odor,

The Schedule referred to in these Letters Patent/and making part of the same.

4being had to the accompanying drawings, forming part ofrtliis specification.

This. invention relates to improvements in safes such as aredesigned for protection against lire and burglars, having for its object to provide greater protection against burglars than exists in the safes now constructed. llie invention consists in constructing the safe of an inner thick andstrong shell of metal, and au exterior thin shell of chilled iron, and having on its interior surface int, emery, or any other substance which in drilling will generate sparks of fire to explode powder, with which a space between the two shells is th be filled, so as to blow-oii` the outer shell,l to create alarm, and to disable the burglars.

Figure l represents a top view, with a part. broken away. i

Figure 2 represents a similar side elevation.

Similar letters of reference indicate corresponding parts.

I propose to construct these safes of two shells, A B, the outer one,`vA, being thin, and made of castmetal, so as to break into fragments when exposed to great strain, and the inner shell B, being made thicker and stronger, and preferably of more tough and fibrous l material.

These shells are tol be so designed, relatively to each other, in respect of size, as to provide a space,-C, on all sides, which space I propose to fill with gun- 'powdcn I also propose to coat the interior surface ofthe outer shell. in casting or by any other means, with flint, broken glass, emery, or any other substance which will, under theaction of a drill in boring, gen` erate re to explode the powder, and thus create an alarm, and disable the burglars, by exploding the outer shell'and throwing the fragments in all directions from all sides of the safe.

- I propose to make the inner shell suiiicicntly thick and strong to withstand this explosion.

These shells inay be cast so as to form the five sides inione piece, or they maybe `made in any other preferred way.

The door may also be made of two walls with a Space between, silnilarlycharged.

The powder being enclosed in an air-tight space will not explode in case of the burning of the buildings containing the safes, but will burn without. exploding in case the heat is very great.

Having thus described my invention,

I claim as new, and desire to secure by Letter.r Patent- A safe made with strong interior shell, B, and thin exterior shell, A, arranged with a space between them, filled w'ith explosive powder, and a rough substance, which, by frictional contact with a burglars tool, will ignite the powder, substantially as described.

JOSEPH P. WHITE.

ritnesse's:

JAs. S. HAUPT, B. B. Fernuni.. 

